moraines_polygon polygon indicating the location of a prominent end moraine stations_point radiocarbon sample locality surfgeology_arc geologic unit contacts surfgeology_polygon geologic unit polygons symbols_arc symbols depicting locations of morainal crests, meltwater drainage channels, and glacial flow direction symbols_point symbols showing relative motion and/or orientation of geomorphic features
Hamilton, T.D., 200306, Surficial geology of the Dalton Highway (Itkillik-Sagavanirktok rivers) area, southern Arctic foothills, Alaska: Professional Report PR 121, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS), Fairbanks, AK, USA.Online Links:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000064
Ordinates (y-coordinates) are specified to the nearest 0.000064
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6,378,206.4.
The flattening of the ellipsoid used is 1/294.98.
| Value | Definition |
|---|---|
| 0 | contact boundary for water-eroded drift |
| 5 | geologic unit contact location certain |
| 6 | geologic unit contact location approximate or inferred |
| Formal codeset | |
|---|---|
| Codeset Name: | PR121_codeset.pdf |
| Codeset Source: | Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/PR121_codeset.pdf> |
Attribute values do not follow a specific naming convention.
| Value | Definition |
|---|---|
| 17 | morainal crest |
| 101 | arrow symbol indicating the endpoint of a meltwater drainage channel |
| 125 | arrow symbol indicating the direction of glacial flow across topographic divide |
| Range of values | |
|---|---|
| Minimum: | -180 |
| Maximum: | 335 |
| Units: | degrees |
| Value | Definition |
|---|---|
| 1 | morainal crest or meltwater drainage channel |
| 2 | direction of glacial flow across a topographic divide |
Funding for the geologic mapping and geochronologic dating performed for this project was provided by the U.S. Geological Survey STATEMAP Program under award number 03HQAG0055 and by the Alaska State Legislature. Geologic field investigations by: T.D. Hamilton with: Alyeska Pipeline Service Company (1969-72); U.S. Geological Survey (1975-76); University of Colorado, Institute of Arctic & Alpine Research (1996-97); and Alaska Division of Geological & Geophysical Surveys (2001). Assisted by R.M. Thorson (1975-76) and D.S.P. Stevens (2001). Technical review by: R.A. Combellick and D.S. Kaufman. Digital cartography and map design by: Simone Montayne, E.E. Harris, and A.G. Sturmann. Edited by: Paula Davis and E.E. Harris
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The surficial-geologic map from the Sagavanirktok to the Itkillik Rivers was selected by the Alaska Division of Geological & Geophysical Surveys (DGGS) for detailed (1:63,360-scale) mapping to document depositional relationships and the extent of surficial deposits near the Dalton Highway on the North Slope of Alaska. This map provides a comprehensive understanding of Northern Alaska glaciation. Detailed surficial mapping is an important first step in creating engineering-geologic maps to identify construction materials needed for maintenance and development of the infrastructure that connects and supports the North Slope oil fields.
Brosgé, W.P., Reiser, H.N., Dutro, J.T., Jr., and Detterman, R.L., 1979, Bedrock geologic map of the Philip Smith Mountains quadrangle, Alaska: Miscellaneous Field Investigations Map MF-879-B, U.S. Geological Survey, none.Online Links:
- none
Detterman, R.L., Bowsher, A.L., and Dutro, J.T., Jr., 1958, Glaciation on the Arctic Slope of the Brooks Range, northern Alaska: Arctic v. 11, none, none.Online Links:
- none
Ellis, J.M., and Calkin, P.E., 1984, Chronology of Holocene glaciation, central Brooks Range, Alaska: Geological Society of America Bulletin v. 95, Geological Society of America, none.Online Links:
- none
Hamilton, T.D., 1978, Surficial geologic map of the Philip Smith Mountains quadrangle, Alaska: Miscellaneous Field Studies Map MF-879-A, U.S. Geological Survey, none.Online Links:
- none
Hamilton, T.D., 1979, Radiocarbon dates and Quaternary stratigraphic sections, Philip Smith Mountains quadrangle, Alaska: Open File Report OF 79-866, U.S. Geological Survey, none.Online Links:
- none
Hamilton, T.D., 1982, A late Pleistocene glacial chronology for the southern Brooks Range—stratigraphic record and regional significance: Geological Society of America Bulletin v. 93, Geological Society of America, none.Online Links:
- none
Hamilton, T.D., and Porter, S.C., 1975, Itkillik glaciation in the Brooks Range, northern Alaska: Quaternary Research v. 5, none, none.Online Links:
- none
Data sources used in this process:
Data sources used in this process:
Data sources used in this process:
Data sources used in this process:
Harris, E.E., Mull, C.G., Reifenstuhl, R.R., and Montayne, Simone, 2002, Geologic map of the Dalton Highway (Atigun Gorge to Slope Mountain) area, southern Arctic Foothills, Alaska: Preliminary Interpretive Report PIR 2002-2, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Geologic data used in the compilation was derived from the field maps and notes generated by this project as well as data from other sources as noted in the "Source_Information" section. Location data for geologic point coverages was acquired from hand held GPS units and compiled on paper field maps, air photos, and notebooks. A paper compilation map composed of all of the geologic information elements was scanned and digitized using a digitizing tablet. Spatial data attributes were attached to data objects using ArcInfo. Attributes were verified for consistency and completeness during the creation of the metadata.
Location data and estimated position errors were manually entered into a spreadsheet. Sample numbers and locations with selected data were spatially registered and analyzed in ArcGIS software. Location data was determined visually using topographic maps at a scale of 1:63,360 and 1:50,000 (nominal) scale, color-infrared aerial photographs. See "Source_Information" section for horizontal positional accuracy of locations not measured by DGGS.
This data set includes coverages that contain information about geologic units, their ages, and field sample locations at 1:63,360 scale.
Topology is present on appropriate polygon and line data tables; others are point data tables.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or data set are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
- Use_Constraints:
- Any hard copies or published data sets utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these data sets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.
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Professional Report 121
The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.
Current publication is available on paper. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard.
Printed publication can be purchased for $15.00 (contact information below) plus shipping if mailed.
| Data format: | PDF (version 1.6) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/7191> |
| Data format: | ArcGIS Shapefile (version ESRI ArcGIS 9.x) |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/7191> |
| Media you can order: |
CD-ROM
(format Joliet)
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Digital files on CD-ROM are available for $10.00 (contact information below). No fees charged for downloaded files.
Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). The DGGS web site (<http://www.dggs.alaska.gov/>) has a list of electronic data available and an order form that can be printed. Payment accepted: Cash, check, money order, VISA, or MasterCard.
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